CN208539102U - The flat omnidirectional's digital television receiver antenna of novel double-frequency section - Google Patents
The flat omnidirectional's digital television receiver antenna of novel double-frequency section Download PDFInfo
- Publication number
- CN208539102U CN208539102U CN201821227967.3U CN201821227967U CN208539102U CN 208539102 U CN208539102 U CN 208539102U CN 201821227967 U CN201821227967 U CN 201821227967U CN 208539102 U CN208539102 U CN 208539102U
- Authority
- CN
- China
- Prior art keywords
- copper foil
- film copper
- monobrachial
- television receiver
- digital television
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
A kind of flat omnidirectional's digital television receiver antenna of novel double-frequency section, including medium substrate, the film copper foil being attached on medium substrate one side and the feeder panel being attached on medium substrate another side, the film copper foil being attached on medium substrate one side is symmetrical in structure, with the first and second Monobrachial spiral formula film copper foils of reciprocity in performance, the spiral center of two pairs of Monobrachial spiral formula film copper foils is corresponding with two pieces of feeder panel centers being attached on medium substrate another side respectively to be overlapped, and its coil width is from starting point end exponentially progressive growth to terminal, wherein, in the first Monobrachial spiral formula film copper foil from after starting point around to feeding point is arranged at 170 ° ± 10 °, in the second Monobrachial spiral formula film copper foil from after starting point around to load at 170 ° ± 10 ° and equivalent feedback The connected fictitious load of electric network；It is connected between the terminal end of two pairs of Monobrachial spiral formula film copper foils by a strip copper foil.
Description
Technical field
The utility model relates to a kind of digital television receiver antenna, especially a kind of flat omnidirectional of novel double-frequency section
Digital television receiver antenna.
Background technique
Currently, the digital television receiver antenna on domestic market has yagi aerial, satellite pot antenna, sucker antenna etc.,
Middle yagi aerial and satellite pot antenna volume are huge, and have very strong directionality, in use, director and transmitting antenna polarize
When direction is inconsistent, reception is very poor, is not easy to install and use；Sucker antenna gain is low and frequency band is narrow, also will affect reception
Effect.And above-mentioned antenna can only operate in international V -470MHz--862MHz of frequency range, and to international frequency range III -
174MHZ--230MHZ low-frequency range TV signal can not then receive.
Meanwhile with the continuous development of terrestrial DTV antenna technology, the size of antenna is required and performance requirement is got over
Carry out higher, especially miniaturization, broadband, high-gain etc., however the smaller realization broadband that is less susceptible to of antenna increases with high
Benefit.
Utility model content
The purpose of this utility model aims to solve the problem that the above-mentioned prior art is insufficient, provides a kind of small in size, bandwidth, high gain
The flat omnidirectional's digital television receiver antenna of novel double-frequency section.
Its technical solution is: a kind of flat omnidirectional's digital television receiver antenna of novel double-frequency section, including medium substrate, attached
On medium substrate one side film copper foil and the feeder panel that is attached on medium substrate another side, feature exist
It is that two pairs of adjacent sizes are identical and around to opposite in: the film copper foil being attached on medium substrate one side
First and second Monobrachial spiral formula film copper foils, the spiral center of two pairs of Monobrachial spiral formula film copper foils respectively be attached to
The corresponding coincidence in two pieces of feeder panel centers on medium substrate another side；The first and second Monobrachial spirals formula film copper foil
Coil width from starting point end exponentially progressive growth to terminal, wherein in the first Monobrachial spiral formula film copper foil
From after starting point around to feeding point is arranged at 170 ° ± 10 °, the second Monobrachial spiral formula film copper foil from after starting point around to
The fictitious load being connected with equivalent feeding network is loaded at 170 ° ± 10 °；The first and second Monobrachial spirals formula film copper foil
Terminal end between by a strip copper foil connect.
The beneficial effect is that: the utility model is symmetrical using being attached on medium substrate same side in two pairs of structures, property
Can on the first and second Monobrachial spiral formula film copper foils with reciprocity, one pair of antenna is constituted, in lesser volume range
It is interior, antenna brachium has farthest been expanded, its standing wave in 174MHZ--230MHZ, 470MHZ--698MHZ two-band is made
Than 1.8 hereinafter, gain with higher and anti-interference, improve the sensitivity and reliability of radio TV signals receiving；And
Antenna normal direction plane radiation patterns approximation omnidirectional, it is meant that horizontal reception mode or vertical reception mode are either used,
The TV signal of any direction transmitting can be effectively received, is easy to use；In addition, it also has small in size, light-weight, cost
It is low, the features such as easy processing, have broad application prospects.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the utility model receiving antenna directional pattern；
Fig. 4 is the stationary wave characteristic figure of the utility model receiving antenna.
Specific embodiment
Referring to Fig. 1,2,1, a kind of flat omnidirectional's digital television receiver antenna of novel double-frequency section, including medium substrate 1, it is attached
On medium substrate one side film copper foil 2 and the feeder panel 3 that is attached on medium substrate another side.The attachment
Film copper foil 2 on medium substrate one side is that two pairs of adjacent sizes are identical and around to opposite first and second
Monobrachial spiral formula film copper foil.Wherein, the first Monobrachial spiral formula film copper foil by counterclockwise around to being attached in the shape of a spiral
On medium substrate, the second Monobrachial spiral formula film copper foil by clockwise about to being attached on medium substrate in the shape of a spiral.Two pairs
The spiral center of Monobrachial spiral formula film copper foil is respectively and in two pieces of feeder panels 3 being attached on 1 another side of medium substrate
The heart is corresponding to be overlapped；From starting point, end is in the coil width of the first and second Monobrachial spirals formula film copper foil to terminal
The progressive growth of index, start width are 0.15cm ± 0.01cm, and terminal terminal end width is 10cm ± 0.5cm, spiral growth rate
Take 0.1-0.2, two pairs of Monobrachial spiral formula film copper foils around being 7 × π ± 0.2 × π to angle.Wherein, in the first single armed
Spiral film copper foil from after starting point around to 170 ° ± 10 ° place's settings feeding point (4), in the second Monobrachial spiral formula film copper
Paillon from after starting point around to loading the fictitious load being connected with equivalent feeding network at 170 ° ± 10 °, 5.Why feeding point does not have
Have setting the first Monobrachial spiral formula film copper foil from starting point but setting after the starting point around to 170 ° ± 10 °
Place is the variation because of feed position, will lead to film copper foil and powers on the phase of wave, amplitude and also changes therewith, from
And this section of copper foil from the starting point to feeding point can be utilized to absorb the back wave on remaining part copper foil, improve on copper foil
The transmission state of the electromagnetic wave received reduces the standing-wave ratio of antenna；And it is originated certainly in the second Monobrachial spiral formula film copper foil
Around the fictitious load being connected to load at 170 ° ± 10 ° with equivalent feeding network after point, it is therefore an objective to for absorbing on whole section of copper foil
Back wave, reversed circular polarization radiation caused by cutting down because of reverse current improve antenna in the property of 174MHZ--230MHZ low-frequency range
Energy.It is connected between the terminal end of first and second Monobrachial spiral formula film copper foils by a strip copper foil 6, constitutes one pair
Antenna.Be equivalent to: a part therein, antenna overall dimensions do not significantly increase two pairs of Monobrachial spiral formula film copper foils each other
While, antenna brachium is farthest expanded, antenna brachium is longer, and antenna lower limit working frequency is lower, so as to mention
Die line 174MHZ--230MHZ low-frequency range performance.
In order to improve the standing-wave ratio of antenna low side, in above-mentioned the second Monobrachial spiral formula film copper foil 6 × π ± 0.2 × π
Place adds one section of strip copper foil 7, and the back wave that this section of strip copper foil is generated in 174MHZ--230MHZ low-frequency range can be with day
Back wave on other sections of line carries out a degree of counteracting.
The strip copper foil 6 between terminal end due to being connected to the first and second Monobrachial spiral formula film copper foils
It is equivalent to inductance, capacitor, therefore, width and the length difference of the strip copper foil, equivalent inductance and capacitor are also different, into
And it also will affect the equivalent impedance of whole section of copper foil.For this purpose, choosing the optimum width range of the strip copper foil are as follows: 1.5cm ±
0.2cm, length range are as follows: 25cm ± 2cm.
Above-mentioned feeder panel 3 is rectangle single-side brass plate, size and the first and second Monobrachial spiral formula film coppers
The primary radiation field maximum cross-section of paillon coincide substantially.Since there are coupled capacitors between the copper clad plate on feeder panel and film copper foil
And distribution capacity, convenient for effectively feeding and conducive to electromagnetic field is motivated, enables the antenna to obtain larger to realize impedance matching
Energy transmission, improve gain, reversed circular polarization radiation caused by reducing because of reflection promotes the polarizability of front end, therefore sets
The size of copper clad plate is 5cm × 4cm, the spacing (i.e. the thickness of medium substrate) of copper clad plate and film copper foil be 0.4cm ±
0.1cm, to carry out capacitance compensation.
Between the spiral outer ring of the first and second above-mentioned Monobrachial spiral formula film copper foils, most nearby at a distance of 2cm~
3cm。
Above-mentioned medium substrate 1 can use common glass-fiber-plate, acrylic board or PVC board, and material price is cheap easily
It obtains, and medium substrate volume is only 40cm × * 20cm × * 0.4cm, realizes the miniaturization of antenna.
After tested, this antenna performance is as follows:
1, in 174MHZ--230MHZ, 470MHZ--698MHZ two-band, antenna normal direction plane radiation patterns are approximate
For irregular cycle (see figure 3), which is isotropic receiving antenna, can receive the transmitting signal of any direction；
2, in 174MHZ--230MHZ, 470MHZ--698MHZ two-band, voltage standing wave ratio is less than 1.8, (see Fig. 4.Benefit
The products in kind standing-wave ratio figure surveyed with vector network analyzer), illustrate incidence wave energy transmission to antenna input major part
It is all absorbed, back wave is seldom, and according to standing-wave ratio and reflection power conversion table, when voltage standing wave ratio is less than 1.8, reflectivity is small
In 8%, antenna has preferable interference free performance；
3, antenna size 40cm*20cm*2cm, small in size, light-weight, omni-directional receiving antenna, horizontal reception mode and
Vertical reception mode is easy to use.
Claims (8)
1. a kind of flat omnidirectional's digital television receiver antenna of novel double-frequency section, including medium substrate (1), are attached to medium substrate
Film copper foil (2) on one side and the feeder panel (3) being attached on medium substrate another side, it is characterised in that: described
Being attached to film copper foil (2) on medium substrate one side is that two pairs of adjacent sizes are identical and around to opposite first
With the second Monobrachial spiral formula film copper foil, the spiral center of two pairs of Monobrachial spiral formula film copper foils respectively be attached to medium
The corresponding coincidence in two pieces of feeder panel (3) centers on substrate another side；The first and second Monobrachial spirals formula film copper foil
Coil width from starting point end exponentially progressive growth to terminal, wherein in the first Monobrachial spiral formula film copper foil
Feeding point (4) are set around at 170 ° ± 10 ° from after starting point, the second Monobrachial spiral formula film copper foil from after starting point around
The fictitious load (5) being connected with equivalent feeding network is loaded to 170 ° ± 10 °；The first and second Monobrachial spirals formula film copper
It is connected between the terminal end of paillon by a strip copper foil (6).
2. the flat omnidirectional's digital television receiver antenna of a kind of novel double-frequency section according to claim 1, it is characterised in that:
The first and second Monobrachial spiral formula film copper foils, always around to being 7 × π ± 0.2 × π, start width is
0.15cm ± 0.01cm, terminal terminal end width are 10cm ± 0.5cm.
3. the flat omnidirectional's digital television receiver antenna of a kind of novel double-frequency section according to claim 2, it is characterised in that:
The second Monobrachial spiral formula film copper foil adds one section of strip copper foil (7) at 6 × π ± 0.2 × π.
4. the flat omnidirectional's digital television receiver antenna of a kind of novel double-frequency section according to claim 1, it is characterised in that:
The strip copper foil (6) connected between the terminal end of the first and second Monobrachial spiral formula film copper foils, it is wide
Degree is 1.5cm ± 0.2cm, and length is 25cm ± 2cm.
5. the flat omnidirectional's digital television receiver antenna of a kind of novel double-frequency section according to claim 1, it is characterised in that:
The feeder panel (3) is rectangle single-side brass plate, the size of the copper clad plate and the first and second Monobrachial spiral formula films
The primary radiation field maximum cross-section of copper foil coincide substantially.
6. the flat omnidirectional's digital television receiver antenna of a kind of novel double-frequency section according to claim 5, it is characterised in that:
The size of the copper clad plate is 5cm × 4cm, and the spacing of copper clad plate and film copper foil is 0.4cm ± 0.1cm.Therefore it sets and applies copper
The size of plate is 5cm × 4cm, and the spacing of copper clad plate and film copper foil is 0.4cm ± 0.1cm, to carry out capacitance compensation.
7. the flat omnidirectional's digital television receiver antenna of a kind of novel double-frequency section according to claim 1, it is characterised in that:
Between the spiral outer ring of the first and second Monobrachial spiral formula film copper foils, most nearby at a distance of 2cm~3cm.
8. the flat omnidirectional's digital television receiver antenna of a kind of novel double-frequency section according to claim 1, it is characterised in that:
The medium substrate (1) is common glass-fiber-plate, acrylic board or PVC board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821227967.3U CN208539102U (en) | 2018-08-01 | 2018-08-01 | The flat omnidirectional's digital television receiver antenna of novel double-frequency section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821227967.3U CN208539102U (en) | 2018-08-01 | 2018-08-01 | The flat omnidirectional's digital television receiver antenna of novel double-frequency section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208539102U true CN208539102U (en) | 2019-02-22 |
Family
ID=65385998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821227967.3U Expired - Fee Related CN208539102U (en) | 2018-08-01 | 2018-08-01 | The flat omnidirectional's digital television receiver antenna of novel double-frequency section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208539102U (en) |
-
2018
- 2018-08-01 CN CN201821227967.3U patent/CN208539102U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104157968B (en) | New concept broadband circularly polarized antenna | |
| US8711039B2 (en) | Antenna module and wireless communication apparatus | |
| CN108281774B (en) | Dual-polarization direction backtracking rectification antenna array | |
| CN203983490U (en) | A kind of new ideas Broadband circularly polarized antenna | |
| CN101958463B (en) | High-gain wideband omnidirectional antenna | |
| CN209515999U (en) | A kind of circular polarization microstrip antenna | |
| CN106299690A (en) | A kind of differential feed Broadband circularly polarized antenna | |
| CN204216221U (en) | 2.8GHz prints four-arm spiral antenna | |
| CN103001005A (en) | Device and mobile terminal for lowering specific absorption rate of electromagnetic radiation | |
| CN103247868B (en) | A kind of multi-band broadband dual-polarization LTE omnidirectional antenna | |
| CN212380558U (en) | Antenna element structure and antenna | |
| CN210040568U (en) | Single-layer coaxial feed dual-polarization microstrip array antenna | |
| CN203589197U (en) | Low-profile high-gain panel antenna | |
| CN111463561A (en) | Array antenna and base station | |
| RU188485U1 (en) | SMALL-SIZE SHORT-WAVE ANTEN FIDER DEVICE "MRV" | |
| CN207651660U (en) | A kind of dual polarized microstrip patch antenna based on L-type probe feed | |
| CN206379463U (en) | A kind of printing vibrator array antenna module of integrated amplitude and phase monitoring network | |
| CN208539102U (en) | The flat omnidirectional's digital television receiver antenna of novel double-frequency section | |
| US10910723B2 (en) | Planar antenna for digital television | |
| CN206225547U (en) | A kind of differential feed Broadband circularly polarized antenna | |
| CN206364196U (en) | Unmanned plane antenna and unmanned plane | |
| CN105337021A (en) | Miniaturized efficient microwave power transmission rectification array | |
| CN108511892A (en) | A kind of compact multi-band antennas | |
| CN109524778B (en) | Double-fed circularly polarized antenna | |
| CN207967288U (en) | A kind of abnormity low section dual-polarization radiating unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190222 Termination date: 20200801 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |